Microchip Technology ATTINY1634-MNR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 12MHz
Connectivity I2C, SPI, UART/USART, USI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 18
Program Memory Size 16KB (16K x 8)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 12x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 20-QFN-EP (4x4)
Package / Case 20-WFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY1634-MNR is an 8-bit AVR microcontroller with 16KB flash and 1KB SRAM in a 20-WFQFN package. Operating from 1.8V to 5.5V at 12MHz, it features brown-out detection, POR, PWM, and WDT. Rated for -40°C to 105°C, it is engineered for demanding industrial and automotive applications requiring extended temperature tolerance.

  • Extended temperature range (-40°C to 105°C): Handles harsh environments where standard MCUs fail.
  • Large 16KB flash: Accommodates complex firmware for motor control or communication stacks.
  • 1KB SRAM: Supports moderate data buffering and real-time processing.
  • Robust reset circuitry: Brown-out detection and POR prevent corruption during voltage dips.

Automotive Body Electronics

The 105°C rating and 16KB flash make it suitable for window lift controllers or seat position memory modules.

Industrial Process Control

With 1KB SRAM and PWM, it can manage small pumps, valves, or fan speed controllers in HVAC systems.

Smart Agriculture Sensors

Its wide voltage range and robust reset features support soil moisture sensors operating in harsh outdoor conditions.

Power Tools

The 12MHz speed and high-temperature tolerance allow for brushless motor control in cordless drills and impact drivers.

Medical Device Actuators

Reliable operation up to 105°C ensures safety in sterilization equipment or surgical tool actuators.

Energy Harvesting Nodes

Low-power sleep modes and 1.8V operation enable solar or vibration-powered wireless sensor nodes.

Q: What is the maximum operating frequency?
A: The ATTINY1634-MNR runs at up to 12MHz.
Q: What is the program memory size?
A: It has 16KB of flash memory (16K x 8 bits).
Q: What is the operating temperature range?
A: It is rated for -40°C to 105°C, suitable for industrial environments.
Q: Does it have PWM support?
A: Yes, it includes PWM channels and a watchdog timer.
Base Product Number : ATTINY1634
12MHz 16KB Flash 1KB SRAM 8-bit MCU automotive AVR high temperature industrial PWM RISC WFQFN-20
Q: What is the maximum operating frequency?
A: The ATTINY1634-MNR runs at up to 12MHz.
Q: What is the program memory size?
A: It has 16KB of flash memory (16K x 8 bits).
Q: What is the operating temperature range?
A: It is rated for -40°C to 105°C, suitable for industrial environments.
Q: Does it have PWM support?
A: Yes, it includes PWM channels and a watchdog timer.